From what I am seeing here..if I replace the stock 15" steel wheels (ugh!) with a set ( car club member selling them to me for $150) of 17x7" stock 10 spoke silver clear coat wheels from a 2000 Chrysler 300m (114.3mm) and a set of 1 year old used Firestone 235x45x17 (neighbor selling them to me for $100)......they should fit very well and with no modifications needed----look good---ride better----cut down road noise etc????????????

Nice car...........I didn't know just how much I'd enjoy the Caliber until we got one and I started diddling with it like I used to do with our former PT Cruiser.....hope you have many happy miles........